A system for separating vinasse from rice hulls

The rice husk separation system for distiller's grains utilizes technologies such as drying, negative pressure air separation, cyclone separation, and vibration screening to solve the problem of low separation efficiency of distiller's grains, achieving efficient separation of rice husks and mash, and improving the palatability and nutritional value of distiller's grains.

CN224372105UActive Publication Date: 2026-06-19ROAD ENVIRONMENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ROAD ENVIRONMENT TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing technologies cannot efficiently separate distiller's grains and rice husks, resulting in distiller's grains being coarse, unpalatable, and low in nutritional value, which cannot meet the requirements of large-scale production in distilleries.

Method used

The system employs a rice husk separation system, which includes components such as a conveying device, dryer, negative pressure air separator, primary and secondary cyclone separators, centrifugal feeder, and high-frequency vibrating air cushion screen. Through drying, negative pressure air separation, cyclone separation, centrifugal separation, and vibration screening, it achieves efficient separation of rice husks and fermentation mash.

Benefits of technology

It achieves efficient separation of distiller's grains and rice husks, improves the purity and palatability of distiller's grains, and meets the needs of large-scale production.

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Abstract

The utility model relates to a kind of distiller's grains rice hull separation systems, it includes distiller's grains raw material bin, drying machine and negative pressure winnowing machine connected in turn by conveying device;The upper end of the negative pressure winnowing machine is equipped with first air selection discharge port, and the first air selection discharge port is connected to primary cyclone separator, and the discharge port of the primary cyclone separator is connected to rice hull storage bin;The lower end of the negative pressure winnowing machine is equipped with second air selection discharge port, and the second air selection discharge port is connected to distiller's grains storage bin.Distiller's grains is dried by drying machine, and lighter rice hull is taken away upward using negative pressure winnowing machine, then rice hull is separated from airflow using cyclone separator, and is collected to rice hull storage bin, while heavier distiller's grains is settled and collected to distiller's grains storage bin under the action of gravity, can well achieve the purpose of efficiently separating distiller's grains and rice hull, satisfy the production requirement of large scale of winery.
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Description

Technical Field

[0001] This utility model relates to the field of distillers' grains separation, specifically to a system for separating rice husks from distillers' grains. Background Technology

[0002] Distillers' grains are a relatively concentrated and abundant feed resource with high crude protein content. However, they contain a large amount of rice husks, accounting for about 30% to 40% of the dried grains, making them coarse, poorly palatable to animals, high in crude fiber, and low in nutritional value, resulting in poor feed value. Therefore, how to convert distillers' grains into high-efficiency feed is a technical challenge that needs to be overcome. Current distillers' grains separation technology cannot achieve efficient separation of distillers' grains and meet the requirements of large-scale production in distilleries. Utility Model Content

[0003] Based on the above description, this utility model provides a rice husk separation system for distiller's grains to solve the problem that related technologies cannot achieve efficient separation of distiller's grains and meet the large-scale production requirements of distilleries.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A rice husk separation system for distiller's grains includes a raw material silo for distiller's grains, a dryer, and a negative pressure air separator connected in sequence by a conveying device; the upper end of the negative pressure air separator is provided with a first air separator outlet, which is connected to a primary cyclone separator, and the outlet of the primary cyclone separator is connected to a rice husk storage silo; the lower end of the negative pressure air separator is provided with a second air separator outlet, which is connected to a fermented mash storage silo.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the second air separation outlet is connected to the centrifugal throwing machine via a conveyor belt, and the outlet of the centrifugal throwing machine is connected to the rice husk storage bin.

[0007] Furthermore, the upper end of the centrifugal feeder is provided with a first centrifugal discharge port, which is connected to the rice husk storage bin; the lower end of the centrifugal feeder is provided with a second centrifugal discharge port, which is connected to the fermented mash storage bin.

[0008] Furthermore, the first centrifugal discharge port is connected to the secondary cyclone separator, and the discharge port of the secondary cyclone separator is connected to the rice husk storage bin;

[0009] Furthermore, a high-frequency vibrating air cushion screen is provided below the second centrifugal discharge port, and the high-frequency vibrating air cushion screen is connected to the rice husk storage bin and the fermented mash storage bin.

[0010] Furthermore, the dryer is connected to the material distributor via a belt conveyor, and the material distributor is connected to the negative pressure air separator via a conveyor belt.

[0011] Furthermore, the fabric feeder is a perforated roller fabric feeder.

[0012] Furthermore, the lees raw material silo is connected to the dryer via a screw conveyor.

[0013] Furthermore, the dryer is a multi-layer mesh belt dryer.

[0014] Furthermore, the rice husk separation system also includes a PLC control system, which is connected to the conveying device, the dryer, and the negative pressure air separator.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] After the lees are dried in a dryer, a negative pressure air separator is used to carry the lighter rice husks upwards. Then, a cyclone separator is used to separate the rice husks from the airflow and collect them in the rice husk storage bin. The heavier mash settles under gravity and is collected in the mash storage bin. This method can effectively separate the lees and rice husks, meeting the requirements of large-scale production in distilleries. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the rice husk separation system for distiller's grains provided in an embodiment of the present invention;

[0018] Figure 2 A process flow diagram of the rice husk separation system for distiller's grains provided in this embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Distillers' grains raw material silo; 2. Dryer; 3. Negative pressure air separator; 31. First air separator outlet; 32. Second air separator outlet; 4. Primary cyclone separator; 5. Rice husk storage silo; 6. Distillers' mash storage silo; 7. First conveyor belt; 8. Centrifugal feeder; 81. First centrifugal discharge outlet; 82. Second centrifugal discharge outlet; 9. Secondary cyclone separator; 10. High-frequency vibrating air cushion screen; 11. Belt conveyor; 12. Feeder; 13. Second conveyor belt; 14. Screw conveyor; 15. Negative pressure fan. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] This utility model provides a system for separating rice husks from distiller's grains, which can solve the problem that related technologies cannot efficiently separate distiller's grains and meet the large-scale production requirements of distilleries.

[0023] See Figure 1 and Figure 2 As shown in the figure, a rice husk separation system for distiller's grains provided in this embodiment of the present invention includes a distiller's grains raw material silo 1, a dryer 2, and a negative pressure air separator 3 connected in sequence by a conveying device. The upper end of the negative pressure air separator 3 is provided with a first air separator outlet 31, which is connected to a primary cyclone separator 4. The outlet of the primary cyclone separator 4 is connected to a rice husk storage silo 5. The lower end of the negative pressure air separator 3 is provided with a second air separator outlet 32, which is connected to a fermented mash storage silo 6. In this embodiment, after the distiller's grains are dried by the dryer 2, the lighter rice husks are carried upward by the negative pressure air separator 3, and then the rice husks are separated from the airflow by the primary cyclone separator 4 and collected in the rice husk storage silo 5. The heavier fermented mash settles under gravity and is collected in the fermented mash storage silo 6. This system can effectively achieve the purpose of efficient separation of distiller's grains and meet the requirements of large-scale production in distilleries.

[0024] See Figure 1 As shown, in some embodiments, the second air separation outlet 32 ​​is connected to the centrifugal throwing machine 8 via the first conveyor belt 7. The outlet of the centrifugal throwing machine 8 is connected to the rice husk storage bin 5. The centrifugal throwing machine 8 uses a high-speed rotating impeller or vibrating screen to further separate the lees through centrifugal force, resulting in better separation and higher purity of the lees.

[0025] See Figure 1 As shown, in some embodiments, the upper end of the centrifugal feeder 8 is provided with a first centrifugal discharge port 81, which is connected to the rice husk storage bin 5; the lower end of the centrifugal feeder 8 is provided with a second centrifugal discharge port 82, which is connected to the fermented mash storage bin 6. The rice husks are transported to the rice husk storage bin 5 through the first centrifugal discharge port 81, and the fermented mash is transported to the fermented mash storage bin 6 through the second centrifugal discharge port 82, which facilitates collection and storage.

[0026] See Figure 1As shown, in some embodiments, the first centrifugal discharge port 81 is connected to the secondary cyclone separator 9, and the discharge port of the secondary cyclone separator 9 is connected to the rice husk storage bin 5. The secondary cyclone separator 9 can further separate the rice husks from the airflow and collect them into the rice husk storage bin 5.

[0027] See Figure 1 As shown, in some embodiments, a high-frequency vibrating air cushion screen 10 is provided below the second centrifugal discharge port 82. The high-frequency vibrating air cushion screen 10 is connected to the rice husk storage chamber 5 and the fermented mash storage chamber 6. The vibrating screen further sorts the mash, resulting in better separation and higher purity of the mash.

[0028] See Figure 1 As shown, in some embodiments, the dryer 2 is connected to the distributor 12 via a belt conveyor 11, and the distributor 12 is connected to the negative pressure air separator 3 via a second conveyor belt 13. The distributor can distribute the lees evenly as needed, thereby improving the separation efficiency of the lees.

[0029] See Figure 1 As shown, in some embodiments, the fabric feeder 12 is a multi-hole roller fabric feeder, which is economical, practical, and provides uniform fabric distribution.

[0030] See Figure 1 As shown, in some embodiments, the lees raw material silo 1 is connected to the dryer 2 via a screw conveyor 14. The screw is driven by a motor to rotate and push the lees to achieve the purpose of conveying. It can convey horizontally, inclined or vertically. It has a simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance and convenient closed transportation.

[0031] See Figure 1 As shown, in some embodiments, the dryer 2 is a multi-layer mesh belt dryer, which has a high drying rate, high evaporation intensity, and good product quality.

[0032] See Figure 1 As shown, in some embodiments, the distillers' grains and rice husk separation system further includes a PLC control system. The PLC control system is signal-connected to the conveying device, the dryer 2, and the negative pressure air separator 3. The PLC control system is also signal-connected to the primary cyclone separator 4, the first conveyor belt 7, the centrifugal throwing machine 8, the secondary cyclone separator 9, the high-frequency vibrating air cushion screen 10, the belt conveyor 11, the material distributor 12, the second conveyor belt 13, and the screw conveyor 14 to realize automated separation of distillers' grains and rice husks.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0035] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0036] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A system for separating rice husks from distiller's grains, characterized in that, It includes a silo for raw materials of distiller's grains (1), a dryer (2) and a negative pressure air classifier (3) connected in sequence by a conveying device; The upper end of the negative pressure air separator (3) is provided with a first air separator outlet (31), the first air separator outlet (31) is connected to the first-stage cyclone separator (4), and the outlet of the first-stage cyclone separator (4) is connected to the rice husk storage bin (5). The lower end of the negative pressure air separator (3) is provided with a second air separator outlet (32), which is connected to the mash storage bin (6).

2. The rice husk separation system according to claim 1, characterized in that: The second air separation outlet (32) is connected to the centrifugal throwing machine (8) via the first conveyor belt (7), and the outlet of the centrifugal throwing machine (8) is connected to the rice husk storage bin (5).

3. The rice husk separation system according to claim 2, characterized in that: The upper end of the centrifugal feeder (8) is provided with a first centrifugal discharge port (81), which is connected to the rice husk storage bin (5). The lower end of the centrifugal feeder (8) is provided with a second centrifugal discharge port (82), which is connected to the fermented mash storage bin (6).

4. The rice husk separation system according to claim 3, characterized in that: The first centrifugal discharge port (81) is connected to the secondary cyclone separator (9), and the discharge port of the secondary cyclone separator (9) is connected to the rice husk storage bin (5).

5. The rice husk separation system according to claim 3, characterized in that: A high-frequency vibrating air cushion screen (10) is provided below the second centrifugal discharge port (82), and the high-frequency vibrating air cushion screen (10) is connected to the rice husk storage chamber (5) and the mash storage chamber (6).

6. The rice husk separation system according to claim 1, characterized in that: The dryer (2) is connected to the cloth distributor (12) via a belt conveyor (11), and the cloth distributor (12) is connected to the negative pressure air separator (3) via a second conveyor belt (13).

7. The rice husk separation system according to claim 6, characterized in that: The feeder (12) is a multi-hole roller feeder.

8. The rice husk separation system according to claim 1, characterized in that: The silo for raw materials (1) is connected to the dryer (2) via a screw conveyor (14).

9. The rice husk separation system according to claim 1, characterized in that: The dryer (2) is a multi-layer mesh belt dryer.

10. The rice husk separation system according to claim 1, characterized in that: The rice husk separation system also includes a PLC control system, which is connected to the conveying device, the dryer (2), and the negative pressure air separator (3).